ils

1. they (male or mixed group)
2. (informal) they (female)

donneront

third-person plural future of donner

ainsi

in this way, thus

avis

1. opinion
2. piece of advice
3. notice

décideront

third-person plural future of décider

de

• Prep

  1. of (expresses belonging)
  2. of (used to express property or association)
  3. from (used to indicate origin)
  4. of (indicates an amount)
  5. used attributively, often translated into English as a compound word
  6. from (used to indicate the start of a time or range)
  7. used after certain verbs before an infinitive, often translated into English as a gerund or an infinitive
  8. by (indicates the amount of change)

• Article
• Noun

son

• Noun

  sound

• Det

existence

1. existence
2. life